diff --git a/src/ontology/components/disjoint_union_over.owl b/src/ontology/components/disjoint_union_over.owl
index d53841bb5..96268fea5 100644
--- a/src/ontology/components/disjoint_union_over.owl
+++ b/src/ontology/components/disjoint_union_over.owl
@@ -16,6 +16,7 @@ EquivalentClasses(ObjectUnionOf(ObjectSomeValuesFrom(<http://purl.obolibrary.org
 EquivalentClasses(ObjectUnionOf(ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0002400>) ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0002401>)) ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0000977>))
 EquivalentClasses(ObjectUnionOf(ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0002408>) ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0002425>)) ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0002357>))
 EquivalentClasses(ObjectUnionOf(ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0005613>) ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0005622>)) ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0010190>))
+SubClassOf(ObjectIntersectionOf(ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0000922>) ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0007811>)) ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_8450003>))
 DisjointClasses(ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0000009>) ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0000344>) ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0002072>) ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0002097>))
 DisjointClasses(ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0000010>) ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0001017>))
 DisjointClasses(ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0000068>) ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0000092>))
diff --git a/src/ontology/uberon-edit.obo b/src/ontology/uberon-edit.obo
index 37a45d5ec..29c5457f2 100644
--- a/src/ontology/uberon-edit.obo
+++ b/src/ontology/uberon-edit.obo
@@ -1137,7 +1137,6 @@ xref: VHOG:0001644
 xref: WBbt:0005739
 xref: Wikipedia:Head
 xref: XAO:0003024
-xref: ZFA:0001114
 is_a: UBERON:0011676 ! subdivision of organism along main body axis
 relationship: has_skeleton UBERON:0003129 {gci_relation="part_of", gci_filler="NCBITaxon:7776"} ! skull
 relationship: in_taxon NCBITaxon:33213 ! Bilateria
@@ -53564,7 +53563,7 @@ relationship: developmentally_induced_by UBERON:0007690 {source="PMID:16313389"}
 relationship: has_developmental_contribution_from UBERON:0002342 {source="https://github.com/obophenotype/uberon/wiki/The-neural-crest"} ! neural crest
 relationship: in_taxon NCBITaxon:7711 {source="http://tolweb.org/Chordata/2499"} ! Chordata
 relationship: part_of UBERON:0008814 ! pharyngeal arch system
-relationship: part_of UBERON:0008816 {source="PMID:16313389"} ! embryonic head
+relationship: part_of UBERON:8450003 {source="PMID:16313389"} ! embryonic craniocervical region
 property_value: depiction "http://upload.wikimedia.org/wikipedia/commons/8/8b/Gray41.png" xsd:anyURI
 property_value: external_definition "One of a series of bony or cartilaginous arches that develop in the walls of the mouth cavity and pharynx of the embryo.[AAO]" xsd:string {date_retrieved="2012-06-20", external_class="AAO:0010359", ontology="AAO", source="NLM:branchial+arch"}
 property_value: homology_notes "A conserved feature of all vertebrate embryos is the presence of a series of bulges on the lateral surface of the head, the pharyngeal arches; it is within these structures that the nerves, muscles and skeletal components of the pharyngeal apparatus are laid down.[well established][VHOG]" xsd:string {date_retrieved="2012-09-17", external_class="VHOG:0000155", ontology="VHOG", source="DOI:10.1111/j.1469-7580.2005.00472.x Graham A, Okabe M and Quinlan R, The role of the endoderm in the development and evolution of the pharyngeal arches. J Anat (2005)", source="http://bgee.unil.ch/"}
@@ -123551,6 +123550,7 @@ xref: NCIT:C12418
 xref: SCTID:361355005
 xref: UMLS:C0460004 {source="ncithesaurus:Head_and_Neck"}
 xref: WikipediaCategory:Head_and_neck
+xref: ZFA:0001114
 is_a: UBERON:0000475 {source="MA"} ! organism subdivision
 relationship: has_part UBERON:0000033 ! head
 relationship: has_part UBERON:0000974 {gci_relation="part_of", gci_filler="NCBITaxon:32523"} ! neck
@@ -223129,6 +223129,15 @@ intersection_of: capable_of GO:0046903 ! secretion
 created_by: http://orcid.org/0000-0002-6095-8718
 creation_date: 2022-05-25T18:21:29Z
 
+[Term]
+id: UBERON:8450003
+name: embryonic craniocervical region
+def: "A craniocervical region that is part of an embryo." [https://orcid.org/0000-0002-6095-8718]
+intersection_of: UBERON:0007811 ! craniocervical region
+intersection_of: part_of UBERON:0000922 ! embryo
+relationship: dc-contributor https://orcid.org/0000-0002-6095-8718 ! Damien Goutte-Gattat
+property_value: dcterms-date "2024-09-12T14:40:00Z" xsd:dateTime
+
 [Term]
 id: UBERON:8470000
 name: placental blood